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Aug. 65, 1946. 2,405,410 i A_. DAVENPORT . FEED-1N6 MECHANISM FOR RI'NG DOUBLING' AND‘ LIKE FRAMES ‘ Filed Feb. ' 24, 1945 137 IO Inventor a y- . 2,405,41 Patented Aug. 6,’ 1946 2,405,410 FEEDING MECHANISM FOR RING DOUBLING AND LIKE FRAMES Arthur Davenport, Maccles?eld, England Application February 24, 1945, Serial No. 579,575 In Great Britain February 29, 1944. 3 Claims. 1 (C1. 57—90) 2 a few turns round a roller interposed between the grooved roller i5 and the bottom an eye 16. De tachably mounted on the shaft 9 is a pulley i1 shown in section in Fig. 3. This pulley has a face It with a hole [9 to pass over the shaft 9 and the hole 29 to engage the peg [2 so that the pulley is rotatably connected to the shaft 9 and is secured on it by a headed screw, screwed into the shaft. The pulley has a flange 22 at one side and may have one at the other, and the flat face 10 ofthe pulley has a zig-zag groove 23 of Y section. top and bottom bobbins, This arrangement is not wholly satisfactory in that the pull is not al bobbins on the creel above and is wound once This invention has reference to ring doubling and like frames and refers more particularly, though not exclusively, to such frames for dou bling arti?cial silk yarns. In frames of this kind the yarn to be doubled is on bobbins on a creel and several ends are car ried down to be doubled on a bobbin below and in order to obtain the necessary pull on the bobbins above, the yarn has usually, hitherto, been given The yarn 24 to be doubled is drawn from the round the pulley from front to back, lying in the V groove 23, and is then taken off at the front roller, which as will be understood is positively 15 over the pulley is, through the eye I6 to the bob bin below on which it is wound. In order to driven, and its gear box or mounting, occupies avoid any rubbing of the yarn the pulley i5 is more space than is desirable. to one side of the pulley ll, so that the yarn com This invention has for its object to provide ing off does not rub on the yarn running on. improvements whereby the objections mentioned ways even, there is a tendency for the yarn to slip over though the roller be grooved and the above can be avoided and according to the in vention instead of the rollers referred to, there is used a pulley having formed in its periphery a zig-zag Y-shaped groove in which groove the yarn lies. It is found that the zig-zag form of the groove of Y-shape provides a greater grip on the yarn than the old grooved roller and the doubling can proceed more rapidly and with much less trouble and fewer breakages, as the yarn easily slips into The invention is more particularly set forth 25 the top or V part of the groove which guides it into the stem of the Y, which, being zig-zag holds with reference to the accompanying drawing, of the yarn ?rmly until released by passing out over which the V roller. What I claim as my invention and desire to Fig. 2 is a side view of the bracket and pulley 30 secure by Letters Patent is: 1. In a ring doubling or like frame having a support as seen from the right of Fig. 1. creel provided with yarn-carrying bobbins and Fig. 3 is a section of the pulley and winding bobbins, a solid one-piece yarn pulley Fig. 4 an elevation of the spindle. disposed in the path of the yarn as it passes from As shown in the drawing a bracket 5 is mounted the bobbins of the creel to the winding bobbins, on a rod 6 by which the bracket and all it carries said pulley having an axially flat periphery pro can be raised and lowered, out of and into contact vided with a Y-shaped zig-zag groove in which with a pinion, not shown on a driving shaft below, the yarn is directed during its passage from one and running the length of the frame. This set of bobbins to the other. bracket 5 carriers on it an idler pinion ‘l for en 2. In a ring doubling or like frame having a gaging the pinion on the driving shaft below and creel provided with yarn-carrying bobbins and also engaging a pinion 8 on a shaft 9 passing winding bobbins, a solid one-piece yarn ‘pulley through the bracket, and which, by means of this disposed in the path of the yarn as it passes from invention is much shorter than the shaft now the bobbins of the creel to the winding bobbins, used for carrying a long and grooved roller, the removal of the roller and the shortening of the 45 said pulley having an axially flat periphery pro vided with a Y-shaped zig-zag groove in which shaft being a great convenience and advantage. the yarn is directed during its passage from one The shaft 9 is rotatably mounted in a bushing set of bobbins to the other, said pulley having an and projects to one side of a circular plate l0 integral ?ange at one side thereof, projecting forming part of the bracket 5. This circular plate has a circular recess in its other face and 50 beyond the periphery of the pulley. 3. In a ring doubling or like frame having a there rotates in this recess a plate I l on the shaft Fig. 1 is a front elevation of a pulley mounted ‘ on its bracket. 9 which is hollow, and internally screwed; the plate H has on it a peg l2. The plate H! has two arms 13 and M from which project rods par allel with the shaft 9 the top one [3 carrying a creel provided with yarn-carrying bobbins and winding bobbins, a shaft supported for rotation in the path of the yarn as it passes from the bob bins of the creel to the winding bobbins, a plate 3 2,405,410 4 secured on said shaft and having a stud project a complementary hole for engagement with said ing from one face thereof and, a solid one-piece stud thereby to cause rotation of the pulley with yarn pulley mounted for rotation on one end of said shaft, said shaft being inwardly threaded at said shaft and having an axially ?at periphery its pulley-carrying end for the reception of fas provided with a Y-shaped zig-zag'groove in which 5 tening means for retaining the pulley in engage the yarn is directed during its passage from one ment with said stud. set of bobbins to the other, said pulley having ARTHUR DAVENPORT.